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A Maths Focus Group from Reigate Priory School wrote up the strategy they used to complete the jigsaw:
First we found the corners, which were pretty easy as they had to have 2 black triangles.
Then we did the edges which have 1 black triangle but we found that we had 4 spare, 1 from each edge.
We realised that these probably had to go together in the middle of the jigsaw, ie: with black triangles touching.
We then worked out the 'inner' corners, ie: the squares that had to have 2 triangles matching, and then we worked out the squares that had to join these up.
After that there was only 1 piece left to fit in the middle!!
Jamie from Great Sankey High School described his strategy:
I looked at matching pairs first, and then tried to match them up into a group.Can you match pairs of fractions, decimals and percentages, and beat your previous scores?